<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="@/assets/logo.png" alt="" />
      </div>
      <el-form
        :model="loginForm"
        :rules="loginFormRules"
        ref="loginFormref"
        label-width="0px"
        class="login_from"
      >
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input
            v-model="loginForm.username"
            prefix-icon="el-icon-user"
          ></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            v-model="loginForm.password"
            prefix-icon="el-icon-unlock"
            show-password
          ></el-input>
        </el-form-item>
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  name: 'Login',
  data() {
    return {
      loginForm: {
        username: 'admin',
        password: '123456',
      },

      loginFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          {
            min: 3,
            max: 10,
            message: '长度在 3 到 10 个字符',
            trigger: 'blur',
          },
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          {
            min: 6,
            max: 15,
            message: '长度在 6 到 15 个字符',
            trigger: 'blur',
          },
        ],
      },
    }
  },
  methods: {
    // 点击重置表单
    resetLoginForm() {
      this.$refs.loginFormref.resetFields()
    },
    login() {
      this.$refs.loginFormref.validate(async (valid) => {
        if (!valid) return
        const { data: res } = await this.$http.post('login', this.loginForm)
        if (res.meta.status !== 200) return this.$message.error('登录失败！')
        this.$message.success('登陆成功！')
        // 存储token
        sessionStorage.setItem('token', res.data.token)
        // 跳转页面
        this.$router.push('/home')
      })
    },
  },
}
</script>

<style lang="less" scoped>
.login_container {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-color: #2b4b6b;
}
.login_box {
  position: relative;
  width: 450px;
  height: 300px;
  background: #fff;
  .avatar_box {
    position: absolute;
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: #fff;
    img {
      width: 100%;
      height: 100%;
      background-color: #eee;
      border-radius: 50%;
    }
  }
  .login_from {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
  }
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
